According to its banner, the version of PHP running on the remote web server is 5.6.x prior to 5.6.26. It is, therefore, affected by multiple vulnerabilities :

  - A flaw exists in ext/standard/var_unserializer.re when     destroying deserialized objects due to improper     validation of user-supplied input. An unauthenticated,     remote attacker can exploit this, via a deserialize     call that references a partially constructed object, to     corrupt memory, resulting in a denial of service     condition. (CVE-2016-7411)

  - An heap buffer overflow condition exists in the     php_mysqlnd_rowp_read_text_protocol_aux() function     within file ext/mysqlnd/mysqlnd_wireprotocol.c due to     a failure to verify that a BIT field has the     UNSIGNED_FLAG flag. An unauthenticated, remote attacker     can exploit this, via specially crafted field metadata,     to cause a denial of service condition. (CVE-2016-7412)

  - A use-after-free error exists in the     wddx_stack_destroy() function within file     ext/wddx/wddx.c when deserializing recordset elements.
    An unauthenticated, remote attacker can exploit this,     via a specially crafted wddxPacket XML document, to     cause a denial of service condition. (CVE-2016-7413)

  - An out-of-bounds access error exists in the     phar_parse_zipfile() function within file ext/phar/zip.c     due to a failure to ensure that the     uncompressed_filesize field is large enough. An     unauthenticated, remote attacker can exploit this, via a     specially crafted archive, to cause a denial of service     condition. (CVE-2016-7414)

  - A stack-based buffer overflow condition exists in the     ICU4C library, specifically within file common/locid.cpp     in the msgfmt_format_message() function, due to a     failure to properly restrict the locale length provided     to the Locale class. An unauthenticated, remote attacker     can exploit this, via a long first argument to a     MessageFormatter::formatMessage() function call, to     cause a denial of service condition. (CVE-2016-7416)

  - A flaw exists in the spl_array_get_dimension_ptr_ptr()     function within file ext/spl/spl_array.c due to a     failure to properly validate the return value and data     type when deserializing SplArray. An unauthenticated,     remote attacker can exploit this, via specially crafted     serialized data, to cause a denial of service condition.
    (CVE-2016-7417)

  - An out-of-bounds read error exists in the     php_wddx_push_element() function within file     ext/wddx/wddx.c when handling an incorrect boolean     element, which leads to mishandling the     wddx_deserialize() call. An unauthenticated, remote     attacker can exploit this, via a specially crafted     wddxPacket XML document, to cause a denial of service     condition. (CVE-2016-7418)

  - An out-of-bounds access error exists in the     phar_parse_tarfile() function within file ext/phar/tar.c     when handling the verification of signatures. An     unauthenticated, remote attacker can exploit this to     cause an unspecified impact.

  - An integer overflow condition exists in the fgetcsv()     function when handling CSV field lengths due to improper     validation of certain input. An unauthenticated, remote     attacker can exploit this to corrupt memory, resulting     in a denial of service condition or the execution of     arbitrary code.

  - An integer overflow condition exists in the wordwrap()     function within file ext/standard/string.c due to     improper validation of certain input. An     unauthenticated, remote attacker can exploit this to     corrupt memory, resulting in a denial of service     condition or the execution of arbitrary code.

  - An integer overflow condition exists in the fgets()     function within file ext/standard/file.c due to improper     validation of certain input. An unauthenticated, remote     attacker can exploit this to corrupt memory, resulting     in a denial of service condition or the execution of     arbitrary code.

  - An integer overflow condition exists in the     xml_utf8_encode() function within file ext/xml/xml.c due     to improper validation of certain input. An     unauthenticated, remote attacker can exploit this to     cause an unspecified impact.

  - A flaw exists in the exif_process_IFD_in_TIFF() function     within file ext/exif/exif.c when handling uninitialized     thumbnail data. An unauthenticated, remote attacker can     exploit this to disclose memory contents.

Detections

Analytics

PHP 5.6.x < 5.6.26 Multiple Vulnerabilities

critical Nessus Plugin ID 93656

Version 1.22

Version 1.21

Version 1.20

Version 1.19

Version 1.22 Jan 23, 2026, 3:45 PM CVSS temporal metrics ("CVSSv2 temporal vector" set to "CVSS2#E:POC/RL:OF/RC:C") CVSS temporal metrics ("CVSSv3 temporal vector" set to "CVSS:3.0/E:P/RL:O/RC:C") CVSSv2 score source (changed from "CVE-2016-7411" to "CVE-2016-7417") Exploit attributes ("Exploit available" set to "True") Plugin Feed: 202601231545
Version 1.21 May 27, 2025, 1:54 AM Plugin requirements (Remove enable_cgi_scanning attribute from PHP plugins) Plugin Feed: 202505270154
Version 1.20 Nov 22, 2024, 4:32 PM Plugin metadata (remove script_exclude_keys for CGI scanning) Plugin Feed: 202411221632
Version 1.19 May 31, 2024, 10:02 AM Required Scan configuration ("Enable cgi scanning" set to "True") Plugin Feed: 202405311002